A MECHANICAL FUSE A NECK CORD COMPRISING A MECHANICAL FUSE AND A METHOD OF CONNECTING A MECHANICAL FUSE TO A NECK CORD

摘要

The invention defines a mechanical fuse (20) for a neck cord (30). The mechanical fuse opens the neck cord when a pulling force component in a predetermined direction (70) exceeds a predetermined fuse force at which a rupture element (50) included in the mechanical fuse is designed to break. The rupture element has a break plane (51) at which breakage will occur when the pulling force component causes the stress in the break plane to exceed the value determined by said fuse force. The mechanical fuse further comprises a housing (60 61 62) that is arranged to guide the component of the pulling force in said predetermined direction (70) to the break plane whereas the transfer of a force component having another direction is suppressed. Fig.9